11. Visual alterations
Patients with migraine may report various types of ocular symptoms before and during the attacks. There’s a subtype of migraines called retinal migraine, which features a series of visual alterations in only one eye that may be mild as in twinkling lights or severe as in total blindness. These symptoms should be differentiated from aura symptoms, which are very similar but not as intrusive as retinal migraine symptoms. It is very difficult to differentiate whether you’re suffering from a retinal migraine or a migraine with an aura, so if you have visual symptoms associated with a recurrent headache, it would be a good idea to talk to your doctor about your symptoms before starting with any treatment.